Thomas olapham



(No Model.)

T. CLAPHAM.

LEE BOARD FOR SMALL VESSELS'.

N0. 346,642. Patented Aug. 3, 1886.

WITNESSES ENVENTOR:

' BY v 4;. 2% ATTORNEY. A

N. PEYERS Plush-Lithographer. Wnbinginn. n a

UNITED STATES PATENT Trice.

THOMAS OLAPHAM, OF ROSLYN, NE? YORK.

LEE-BOARD FOR SMALL VES SELS.

SPECIFIQATIQN forming part of Letters Patent No. 346,642, dated August3, 1886,

' Application filed March 30, 1886. Serial No. 197,132. (No model.)

To all whom it may concern:

Be it known that I, THOMAS OLAPHAM, of Roslyn, in the county of Queensand State of New York, haveinvented a new and useful Improvement inLee-Boards for Small Boats, of which the following is a full, clear, andexact description.

Reference is to be had to the accompanying drawings, forming a part ofthis specification, in which similar letters of reference indicatecorresponding parts in all the figures.

Figure 1 is a plan view of a boat to which my improvement has beenapplied. Fig. 2 is a side elevation of the same. Fig. 3 is a frontelevation of the same.

The object of this invention is to provide a substitute for thecenter-boards, lee-boards, and movable keels heretofore used,- and whichshall be so constructed that no center-board box will be required, thatthe hull of the boat Will have no opening through its bottom, that itcan be readily and quickly attached and detached, that the boat willrequire no greater depth of water when the improvement is attachedthereto, and that will allow the boat to be built lighter than boatswith the ordinary attachments, while being stronger and less liable toleak.

The invention consists in theconstruction and arrangement of parts, aswill be hereinafter fully described and claimed.

A represents an ordinary boat.

B is a board of suitablelength and breadth, and which can be placed atthe Weather side of the boat, at the lee side, or one at each side, asmay be desired. The lower corners of the board B are rounded off, andthe said board is tapered toward its lower edge and ends. The board Bcan be made of wood or other suitable material.

G are two arms, the inner ends of which are bent to one side, and arehooked into eyes D, attached to the boat A, or are hinged to the saidboat by other suitable means. The arms 0 can be made of any desiredlength, and their outer ends are bent downward at right angles, andare'inserted in tubes E, secured in the upper edge of the board B. Theouter ends of the arms 0 are secured to the tubes E by set'screws F orother suitable means, or the outer ends of the arms 0 can be bolted orotherwise secured to the board B; but I prefer the construction firstdescribed, as it allows the arms 0 to be readily detached from the boardB, for convenience in storage and transportation. If desired, a singlearm 0 can be used; but in this case the outer end of the said arm shouldbe forked, so that the board B will always be held parallel with thekeel of the boat.

To the arms 0 are attached the outer ends of guys G, the inner ends ofwhich are secured to the boat A by means of belaying-cleats H or othersuitable means, so that the said arms 0 will always be held at rightangles with the keel of the boat. \Vith this construction the board Bwill have a free up-and-down movement, will be unaffected by the rockingof the boat, and will remain vertical, Whether the boat A be heeling tothe force of the wind or be standing plumb on an even keel, so that thesaid board .will always be in the best position to secure a lateral gripor hold on the water to prevent leeway. V Openings maybe formed in thetop edge of the board B, as indicated by dotted lines in Fig. 1, toreceive movable weights, to regulate the depth to which the said boardsinks in the water. i

I am aware that floats have been secured to the outer ends of horizontalarms that were rigidly connected to the vessel at their inner ends whenextended out to their operative positions. Spiral springs wereinterposed between the arms and their securingbolts toprevent suddenshocks by the waves from breaking the arms. In said prior constructionthe floats would not always be perpendicular, but would assume the sameincline as the vessel, by reason of the arms being rigidly connected tothe vessel, where as the floats in my construction will always be 'in avertical position, no matter how the boat may incline from side to side,because the inner ends of the rods are pivotally con nected to the boat."3 I Having thus fully described my invent-ion, I claim as new anddesire to secure by Letters Patent- The combinatiomwith a boat, of therod or 5 rods 0, pivotally connected to the boat to,

swing in a Vertical plane, the outer ends of the rod orrods being bentdown at right angles, the board B, placed edgewise parallel with theboat, the tubes E on the upper edge of the board and receiving thedownwardx0 bent ends of the rod or rods, and the setscrews F,substantially, as set forth.

THOMAS GLAPHAM. \Vitnesses:

JAMES T. GRAHAM, O. SEDGWICK.

